The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 2023
Filed:
Jul. 01, 2019
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
Provided is a sound collection loudspeaker apparatus that makes it possible to intuitively distinguish which talker is talking, and improve the comfort of conversations, when performing in-vehicle conversation and conversations with people outside of a vehicle. The sound collection loudspeaker apparatus is installed in a vehicle. Two or more sound collection and amplification positions are assumed to be present inside the vehicle. The apparatus includes: a transfer function multiplying unit that, from a transfer function for transfer from a desired sound source position where a sound image of an enhanced signal is localized to both ears of a target person located at the sound collection and amplification position, and a transfer function for transfer from one or more speakers installed for playing back sound at the sound collection and amplification position to the ears, applies a filter for localizing a sound image at the sound source position to an enhanced signal, and outputs the enhanced signal that has been filtered to the speaker. The enhanced signal is a signal in which a target sound emitted from the sound collection and amplification position has been enhanced from a signal collected by the one or more microphones.